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3.2. fault diagnosis pr
ocedure
1 Unplug the indoors and outdoors and re-plug after about 5 seconds
2 Judge the LED light is on or not? Does Digital tube shows E4 error code or not?
3 Reference to the previous page about error diagnosis steps
4 Check chip output on the controller is nor
mal or not?
5 Micro-controlled chip error
6 Check the input voltage of the fan motor enough or not
7 PCB error
8 Replace PCB
9 Probe position
10 PCB Cn10
11 Status
12 Normal voltage
13 #2. #3 socket
14 Motor running
15 About A.C 134V-160V
16 Fan motor capacitor disconnected to CN10
17 Fan motor false
18 Replace FAC
19 Fan motor false
20 Replace indoor fan motor
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